From c8b8a34bb5e98660c4ce3683fb64af31b494d55c Mon Sep 17 00:00:00 2001 From: Øyvind Harboe Date: Tue, 15 Dec 2009 14:57:38 +0100 Subject: ecos: crisper implementation of timeval_ms() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A crisper/faster implementation under eCos that makes profiling a tad easier. Signed-off-by: Øyvind Harboe --- src/helper/time_support_common.c | 42 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 src/helper/time_support_common.c (limited to 'src/helper/time_support_common.c') diff --git a/src/helper/time_support_common.c b/src/helper/time_support_common.c new file mode 100644 index 00000000..1ad3676c --- /dev/null +++ b/src/helper/time_support_common.c @@ -0,0 +1,42 @@ +/*************************************************************************** + * Copyright (C) 2006 by Dominic Rath * + * Dominic.Rath@gmx.de * + * * + * Copyright (C) 2007,2008 Øyvind Harboe * + * oyvind.harboe@zylin.com * + * * + * Copyright (C) 2008 by Spencer Oliver * + * spen@spen-soft.co.uk * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "time_support.h" + +/* simple and low overhead fetching of ms counter. Use only + * the difference between ms counters returned from this fn. + */ +int64_t timeval_ms() +{ + struct timeval now; + int retval = gettimeofday(&now, NULL); + if (retval < 0) + return retval; + return (int64_t)now.tv_sec * 1000 + now.tv_usec / 1000; +} -- cgit v1.2.3